A new wideband fully-differential LNA with Matched Input And Output Impedances

Author

Godara, Balwant ; Lakys, Yahya ; Fabre, Alain

Author_Institution

Inst. Super. d´´Electron. de Paris (ISEP), Paris, France

fYear

2010

fDate

20-22 May 2010

Firstpage

971

Lastpage

974

Abstract

The aim of this paper is to introduce a new differential LNA, based on current conveyors. This new LNA offers the following notable advantages over existent topologies: total absence of passive elements and thus it is now the smallest area differential LNA; wideband performances, with stable frequency responses from 0 to 3GHz and wideband matched input and output impedances; easy gain control over wide ranges (0 to 20dB). Comparisons with other topologies prove that the new implementation greatly advances the state of the art. This amplifier is ideally suited to today´s multi-band receivers.

Keywords

current conveyors; low noise amplifiers; current conveyors; gain control; input impedance; low noise amplifiers; multiband receivers; output impedance; passive element; stable frequency response; wideband fully-differential LNA; Broadband amplifiers; Circuit topology; Differential amplifiers; Gain control; Impedance matching; Low-noise amplifiers; Radio frequency; Radiofrequency amplifiers; Voltage control; Wideband; Fully dillerential Low-noise amplifiers; Gain control; Impedance matching; Wideband RF circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Optimization of Electrical and Electronic Equipment (OPTIM), 2010 12th International Conference on

Conference_Location

Basov

ISSN

1842-0133

Print_ISBN

978-1-4244-7019-8

Type

conf

DOI

10.1109/OPTIM.2010.5510572

Filename

5510572